Lazy CRC Shell Extension

A Windows Explorer shell extension for LazyCRC, adding a context menu entry for generating checksum files directly from Explorer.

Usage

Right-click any file or folder and select Create Checksum File. A save dialog will appear where you can choose the output location, filename, and checksum format:

• CRC32 (.sfv)
• MD5 (.md5)
• SHA256 (.sha256)
• SHA512 (.sha512)
• Blake3 (.blake3)

To verify a checksum, right-click any single file of the same format and select Verify Checksum.

Installation

1. Get the latest lazy_crc_shell.zip from the releases section
2. Extract all files in the same folder as lazy_crc.exe
3. Run register_lazy_crc_shell.bat as Administrator

Uninstall

Run unregister_lazy_crc_shell.bat as Administrator

License

This project is covered by the MIT License.

Credits

• SharpShell
• ILRepack